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Based on the aetiology and colour of pigmentation, these disorders can be categorised into blue-coloured lesions, hypopigmented lesions due to vascular aetiology, yellow-coloured lesions (xanthoderma), green-coloured lesions, pigmentation caused by heavy metals, and the miscellaneous group comprising conditions like chromhidrosis and ochronosis. While a few of these conditions may be confined to the skin, others can give an important clue to an underlying systemic disease. This review attempts to summarise the conditions that present as non-melanin pigmentation. It is imperative to recognise these entities and provide appropriate treatment to the patient.<\/jats:p>","DOI":"10.25259\/ijdvl_1732_2024","type":"journal-article","created":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T05:18:23Z","timestamp":1762060703000},"page":"337-346","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Non-melanin pigmentation: A narrative review"],"prefix":"10.25259","volume":"92","author":[{"given":"Pragya Ashok","family":"Nair","sequence":"first","affiliation":[{"name":"Department of Dermatology, Pramukh Swami Medical College, Shree Krishna Hospital, Karamsad, Gujarat, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pooja","family":"Arora","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Atal Bihari Vajpayee Institute of Medical Sciences & Dr Ram Manohar Lohia Hospital, New Delhi, 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